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C9404 (bizhub 368e/308e)
Contents
| Trouble type | C9404: CIS LED lighting abnormally (When DF-704 is installed) |
| Rank | B |
| Trouble detection condition | C9404: After a scan job is completed, the machine detected that the average output of the CIS LED is greater than the specified value. |
| Trouble isolation | Scanner |
| Relevant electrical parts | • CIS module (CIS) • CIS power supply (CISPU) • Dual scan image processing board (DSIPB) • MFP board (MFPB)CIS cable |
Procedure
- Check the back side scanning shading shaft for any stain, and clean up it as necessary.
- Check that the bushing of the back side glass cleaning roller unit is on the standby position.
- Correct the harness connection between CIS and DSIPB if faulty.
- Correct the harness connection between CIS J222-CISPU J2 if faulty.
- Measure the voltage of CISPU J1-1.
- Control signal: CISPU J1-1 (DC12V)
- Location of electrical component: DF-704 5-B
- Measure the voltage of CIS J222-1, J222-2 and J222-5.
- Control signal: CIS J222-1 (DC5V), CIS J222-2 (DC5V), CIS J222-5 (DC12V)
- Location of electrical component: DF-704 4-B
- For any abnormality in the measurement result, replace the CIS cable.
- Replace CIS. (Part# A85GM70001 )
- Replace CISPU. (Part# A3CEPP4Y00 )
- Replace DSIPB. (Part# A7PUH02A01 )
- Replace MFPB. (Part# AA6VH02101 )
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
(Link to the Field Service Manual) L.3.21.2.